动词短语
中文翻译：保持
同义词：
['maintain', 'sustain', 'persist']
例句：
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1.We need to keep up with the latest technology trends.
我们需要跟上最新的技术趋势。
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2. The team kept up their performance despite the challenges.
尽管面临挑战，团队依然保持了他们的性能。
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3. She kept up her promise to help me with my homework.
她兑现了她的承诺，帮助我完成作业。